Also called M4T 276 02 xx .It was manufactured from 1980 by Metra Blansko.
Hardware is based on MHB8080A.
Parts of this topic may be machine translated.
Teaching system from Metra Blansko. A TESLA TS 522 0001 type membrane keyboard was used and the display was on two four-digit VQC10 matrix displays. The computer connection is cut to an absolute minimum.